Features at a glance



518.3 x 518.3 mm

2556 kg's UDL at 8m

TFT pins & R3 Clips

Serious Medium Duty

Serious Medium Duty

Serious Medium Duty Truss has the same overall dimensions as Generic Medium Duty Truss, but offers even greater load carrying capacities and spans than the original. The use of thicker chords and diagonals increases the bending and shear strength of the truss which is offered with Fork End connectors as standard.

Load/Span Table

Span (m)24681012141618202224
UDL kg264926182587255623601910157913241118947802676
UDL kN26.526.225.925.523.619.115.813.211.29..586.7
Theoretical Deflection (mm)0.541227506991114137159179196
CPL kg19891958192715101180955790662559474401338
CPL kN19.919.619.315.
Theoretical Deflection (mm)14142640557391109127143157
Third Points kg2409237823472265177014321185993839711602507
Third Points kN24.123.823.522.617.714.311.
Theoretical Deflection (mm)141433517193116140163183200
Quarter Points kg2409237823472265177014321185993839711602507
Quarter Points kN24.123.823.522.617.714.311.
Theoretical Deflection (mm)141331476686108130151170186

Serious Medium Duty Cantilever Load

SpanUDL kNUDL kgEdge Point Load kNEdge Point Load kgCentral Point Load kNCentral Point Load kg
2 m24.2242012.1121024.22420
Deflection (mm)

Item Codes, Weights and Dimensions

Item CodeItem DescriptionItem DimensionsItem Weight
SMD5FSerious MD 5ft Truss Section1576x521x521 mm30 kg
SMD8FSerious MD 8ft Truss Section2499x521x521 mm42 kg
SMD10FSerious MD 10ft Truss Section3100x521x521 mm50 kg
SMD1MSerious MD 1M Truss Section1026x521x521 mm22 kg
SMD2MSerious MD 2M Truss Section2026x521x521 mm35 kg
SMD3MSerious MD 3M Truss Section3026x521x521 mm49 kg
SMD4MSerious MD 4M Truss Section4026x521x521 mm63 kg
SMDC4Serious MD 4 Way Corner Section681x681x521 mm35 kg
SMDS4Serious MD Sleeve Section681x681x521 mm38 kg

Material Specifications

  • Main Cord 48.44mm x 4.47mm
  • Braces 38.1mm x 3.25mm
  • Material: EN AW-6082 T6
  • Fixings: Fork End : TFT pins & R3 Clips


  • Circles
  • Angled Corners
  • Bespoke Lengths
  • Hinges and Swivels

Design Specification

  • Manufactured in accordance with
  • BS EN 1090-3:2008 : Technical Requirements for aluminium structures
  • EN ISO 9001:2008 : Quality management systems
  • BS EN 1999 Pt 1-1 : Design of Aluminium Structures, General structural rules
  • BS EN 17115:2018 : Specifications for design and manufacture of aluminium and steel

Load Terms

  • All loads are given in Kilograms
  • Allowance has been made for self-weight of truss
  • Allowance has been made for frequent use factor of 85% according to prEN17115
  • The payload of the truss has been calculated as a permanent action. Should it be necessary to consider the payload as a variable action, the tabulated figures should be reduced to 90% of the given values

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